公开(公告)号：US5389591A

公开(公告)日：1995-02-14

申请号：US63689

申请日：1993-05-20

申请人： Jacques, M. L. Guigonis ,  Eric T. G. Jorge

发明人： Jacques, M. L. Guigonis ,  Eric T. G. Jorge

IPC分类号： C03B19/06 ,  C04B35/14

CPC分类号： C04B35/14 ,  C03B19/06 ,  C03B19/066 ,  C03B20/00

摘要： The invention relates especially to a mixture of grains and particles of fused vitreous silica produced by dry mixing: (i) a moderately coarse particle size fraction of fused vitreous silica, (ii) a fine particle size fraction of fused vitreous silica, in which at least 95% by weight of the grains are smaller than 40 .mu.m, (iii) substantially spherical particles of fume silica, and (iv) optionally, at least one particle size fraction of fused vitreous silica which is coarser than fraction (i), the constituents (i) to (iv) being employed in the following proportions by weight: (i) 15-70%, (ii) 15-55%, (iii) 3-15% and (iv) 0-52%. The mixture can be used for the production of articles made of sintered vitreous silica.

摘要翻译： 本发明特别涉及通过干混合产生的熔融玻璃态二氧化硅颗粒和颗粒的混合物：（i）熔融玻璃状二氧化硅的中等粗粒度分数，（ii）熔融玻璃状二氧化硅的细粒度分数，其中 至少95重量％的颗粒小于40μm，（iii）基本上为球形的烟雾二氧化硅颗粒，和（iv）任选地，比部分（i）更粗的至少一种熔融石英二氧化硅的粒度分数， 组分（i）至（iv）按以下重量比例使用：（i）15-70％，（ii）15-55％，（iii）3-15％和（iv）0-52％。 该混合物可用于生产由烧结玻璃状二氧化硅制成的制品。